I have this theory that if you feel you are a hypochondriac then you most probably have a thyroid problem. I felt like a total hypochondriac for years before I was eventually doagnosed with Graves Disease. In fact only two months before my melt down a doctor sat back in her chair with a look of complete disbelief and disinterest and said 'I think you're needing your holiday', she didn't add 'dear' but she might as well have done. I came out seething and said to my husband 'That woman thinks I'm a total nutter'.
Fast forward two months and I was really ill with Graves Disease, fortunately I found a different doctor who recognised what was wrong immediately, mind you it would have been difficult not to by then, I had nearly killed myself and a friend while driving one Tuesday night, I knew I was really ill and had to do something. Then it was doctor Wednesday morning, blood tests Thursday and I had started my treatment by Friday.
Maybe you should tell your doctor your eye consultant suggested you raise your thyroid medicines and what does he think? Or maybe you should have asked your eye man to act like he didn't know you weren't being treated and write to your doctor suggesting that he raises your thyroid medicines.
If it's any help I raised my B12 with Jarrows Methyl B12, I used the 5000mcg version, you stick a losenge under your tongue and let it dissolve and that really I mproved my level. I also used a Vitamin D spray every day although I no longer do that, I have a two egg omelette every day for breakfast and I think that could be what is keeping my Vitamin D levels up. I also eat lots of nuts and seeds to boost my vitamins and minerals.
Apart from that I'm like you and eat mainly fish, chicken and veg - I do like puddings though.
I became T2 while being treated for RA, I was told 'diet and exercise', I bought myself a blood sugar meter and a very good book onhow toreverse your T2 by diet and set abut eliminating everything that spiked my blood, turned out it was a lot of the 'healthy' stuff the nurse recommended!
So i did my own thing and discovered Low Carb, High Fat eating. I lost loads of weight by eliminating everything that raised my blood levels, I stepped up my exercise, I walk for at least half an hour every day but often much more, doing that all depends on how well you can walk.
I was taking Omeprazole too, I had boxes and boxes of the stuff and I was able to stop that completely. when I altered my diet - I pretty much. cut out chocolate (shock horror!) although I have the odd square of 85% chocolate, diet drinks ( more shock horror!) and the odd McDonalds - I used to walk miles as an excuse to have one. Oh and I went totally gluten free to reduce my thyroid antibodies, it was an experiment at first but it seemed to work so I've stuck with it.
Like GG says, you're probably not doing anything wrong. I have to say though that (in my medically unqualified opinion) I think your doctor probably is. Get hold of your test results with their lab ranges. Post them and see what people think. Good luck, don't give up.